/usr/include/ansidecl.h is in binutils-dev 2.22-6ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 | /* ANSI and traditional C compatability macros
Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
Free Software Foundation, Inc.
This file is part of the GNU C Library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
/* ANSI and traditional C compatibility macros
ANSI C is assumed if __STDC__ is #defined.
Macro ANSI C definition Traditional C definition
----- ---- - ---------- ----------- - ----------
ANSI_PROTOTYPES 1 not defined
PTR `void *' `char *'
PTRCONST `void *const' `char *'
LONG_DOUBLE `long double' `double'
const not defined `'
volatile not defined `'
signed not defined `'
VA_START(ap, var) va_start(ap, var) va_start(ap)
Note that it is safe to write "void foo();" indicating a function
with no return value, in all K+R compilers we have been able to test.
For declaring functions with prototypes, we also provide these:
PARAMS ((prototype))
-- for functions which take a fixed number of arguments. Use this
when declaring the function. When defining the function, write a
K+R style argument list. For example:
char *strcpy PARAMS ((char *dest, char *source));
...
char *
strcpy (dest, source)
char *dest;
char *source;
{ ... }
VPARAMS ((prototype, ...))
-- for functions which take a variable number of arguments. Use
PARAMS to declare the function, VPARAMS to define it. For example:
int printf PARAMS ((const char *format, ...));
...
int
printf VPARAMS ((const char *format, ...))
{
...
}
For writing functions which take variable numbers of arguments, we
also provide the VA_OPEN, VA_CLOSE, and VA_FIXEDARG macros. These
hide the differences between K+R <varargs.h> and C89 <stdarg.h> more
thoroughly than the simple VA_START() macro mentioned above.
VA_OPEN and VA_CLOSE are used *instead of* va_start and va_end.
Immediately after VA_OPEN, put a sequence of VA_FIXEDARG calls
corresponding to the list of fixed arguments. Then use va_arg
normally to get the variable arguments, or pass your va_list object
around. You do not declare the va_list yourself; VA_OPEN does it
for you.
Here is a complete example:
int
printf VPARAMS ((const char *format, ...))
{
int result;
VA_OPEN (ap, format);
VA_FIXEDARG (ap, const char *, format);
result = vfprintf (stdout, format, ap);
VA_CLOSE (ap);
return result;
}
You can declare variables either before or after the VA_OPEN,
VA_FIXEDARG sequence. Also, VA_OPEN and VA_CLOSE are the beginning
and end of a block. They must appear at the same nesting level,
and any variables declared after VA_OPEN go out of scope at
VA_CLOSE. Unfortunately, with a K+R compiler, that includes the
argument list. You can have multiple instances of VA_OPEN/VA_CLOSE
pairs in a single function in case you need to traverse the
argument list more than once.
For ease of writing code which uses GCC extensions but needs to be
portable to other compilers, we provide the GCC_VERSION macro that
simplifies testing __GNUC__ and __GNUC_MINOR__ together, and various
wrappers around __attribute__. Also, __extension__ will be #defined
to nothing if it doesn't work. See below.
This header also defines a lot of obsolete macros:
CONST, VOLATILE, SIGNED, PROTO, EXFUN, DEFUN, DEFUN_VOID,
AND, DOTS, NOARGS. Don't use them. */
#ifndef _ANSIDECL_H
#define _ANSIDECL_H 1
#ifdef __cplusplus
extern "C" {
#endif
/* Every source file includes this file,
so they will all get the switch for lint. */
/* LINTLIBRARY */
/* Using MACRO(x,y) in cpp #if conditionals does not work with some
older preprocessors. Thus we can't define something like this:
#define HAVE_GCC_VERSION(MAJOR, MINOR) \
(__GNUC__ > (MAJOR) || (__GNUC__ == (MAJOR) && __GNUC_MINOR__ >= (MINOR)))
and then test "#if HAVE_GCC_VERSION(2,7)".
So instead we use the macro below and test it against specific values. */
/* This macro simplifies testing whether we are using gcc, and if it
is of a particular minimum version. (Both major & minor numbers are
significant.) This macro will evaluate to 0 if we are not using
gcc at all. */
#ifndef GCC_VERSION
#define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
#endif /* GCC_VERSION */
#if defined (__STDC__) || defined(__cplusplus) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(_WIN32)
/* All known AIX compilers implement these things (but don't always
define __STDC__). The RISC/OS MIPS compiler defines these things
in SVR4 mode, but does not define __STDC__. */
/* eraxxon@alumni.rice.edu: The Compaq C++ compiler, unlike many other
C++ compilers, does not define __STDC__, though it acts as if this
was so. (Verified versions: 5.7, 6.2, 6.3, 6.5) */
#define ANSI_PROTOTYPES 1
#define PTR void *
#define PTRCONST void *const
#define LONG_DOUBLE long double
/* PARAMS is often defined elsewhere (e.g. by libintl.h), so wrap it in
a #ifndef. */
#ifndef PARAMS
#define PARAMS(ARGS) ARGS
#endif
#define VPARAMS(ARGS) ARGS
#define VA_START(VA_LIST, VAR) va_start(VA_LIST, VAR)
/* variadic function helper macros */
/* "struct Qdmy" swallows the semicolon after VA_OPEN/VA_FIXEDARG's
use without inhibiting further decls and without declaring an
actual variable. */
#define VA_OPEN(AP, VAR) { va_list AP; va_start(AP, VAR); { struct Qdmy
#define VA_CLOSE(AP) } va_end(AP); }
#define VA_FIXEDARG(AP, T, N) struct Qdmy
#undef const
#undef volatile
#undef signed
/* inline requires special treatment; it's in C99, and GCC >=2.7 supports
it too, but it's not in C89. */
#undef inline
#if __STDC_VERSION__ >= 199901L || defined(__cplusplus) || (defined(__SUNPRO_C) && defined(__C99FEATURES__))
/* it's a keyword */
#else
# if GCC_VERSION >= 2007
# define inline __inline__ /* __inline__ prevents -pedantic warnings */
# else
# define inline /* nothing */
# endif
#endif
/* These are obsolete. Do not use. */
#ifndef IN_GCC
#define CONST const
#define VOLATILE volatile
#define SIGNED signed
#define PROTO(type, name, arglist) type name arglist
#define EXFUN(name, proto) name proto
#define DEFUN(name, arglist, args) name(args)
#define DEFUN_VOID(name) name(void)
#define AND ,
#define DOTS , ...
#define NOARGS void
#endif /* ! IN_GCC */
#else /* Not ANSI C. */
#undef ANSI_PROTOTYPES
#define PTR char *
#define PTRCONST PTR
#define LONG_DOUBLE double
#define PARAMS(args) ()
#define VPARAMS(args) (va_alist) va_dcl
#define VA_START(va_list, var) va_start(va_list)
#define VA_OPEN(AP, VAR) { va_list AP; va_start(AP); { struct Qdmy
#define VA_CLOSE(AP) } va_end(AP); }
#define VA_FIXEDARG(AP, TYPE, NAME) TYPE NAME = va_arg(AP, TYPE)
/* some systems define these in header files for non-ansi mode */
#undef const
#undef volatile
#undef signed
#undef inline
#define const
#define volatile
#define signed
#define inline
#ifndef IN_GCC
#define CONST
#define VOLATILE
#define SIGNED
#define PROTO(type, name, arglist) type name ()
#define EXFUN(name, proto) name()
#define DEFUN(name, arglist, args) name arglist args;
#define DEFUN_VOID(name) name()
#define AND ;
#define DOTS
#define NOARGS
#endif /* ! IN_GCC */
#endif /* ANSI C. */
/* Define macros for some gcc attributes. This permits us to use the
macros freely, and know that they will come into play for the
version of gcc in which they are supported. */
#if (GCC_VERSION < 2007)
# define __attribute__(x)
#endif
/* Attribute __malloc__ on functions was valid as of gcc 2.96. */
#ifndef ATTRIBUTE_MALLOC
# if (GCC_VERSION >= 2096)
# define ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
# else
# define ATTRIBUTE_MALLOC
# endif /* GNUC >= 2.96 */
#endif /* ATTRIBUTE_MALLOC */
/* Attributes on labels were valid as of gcc 2.93 and g++ 4.5. For
g++ an attribute on a label must be followed by a semicolon. */
#ifndef ATTRIBUTE_UNUSED_LABEL
# ifndef __cplusplus
# if GCC_VERSION >= 2093
# define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED
# else
# define ATTRIBUTE_UNUSED_LABEL
# endif
# else
# if GCC_VERSION >= 4005
# define ATTRIBUTE_UNUSED_LABEL ATTRIBUTE_UNUSED ;
# else
# define ATTRIBUTE_UNUSED_LABEL
# endif
# endif
#endif
#ifndef ATTRIBUTE_UNUSED
#define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
#endif /* ATTRIBUTE_UNUSED */
/* Before GCC 3.4, the C++ frontend couldn't parse attributes placed after the
identifier name. */
#if ! defined(__cplusplus) || (GCC_VERSION >= 3004)
# define ARG_UNUSED(NAME) NAME ATTRIBUTE_UNUSED
#else /* !__cplusplus || GNUC >= 3.4 */
# define ARG_UNUSED(NAME) NAME
#endif /* !__cplusplus || GNUC >= 3.4 */
#ifndef ATTRIBUTE_NORETURN
#define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
#endif /* ATTRIBUTE_NORETURN */
/* Attribute `nonnull' was valid as of gcc 3.3. */
#ifndef ATTRIBUTE_NONNULL
# if (GCC_VERSION >= 3003)
# define ATTRIBUTE_NONNULL(m) __attribute__ ((__nonnull__ (m)))
# else
# define ATTRIBUTE_NONNULL(m)
# endif /* GNUC >= 3.3 */
#endif /* ATTRIBUTE_NONNULL */
/* Attribute `pure' was valid as of gcc 3.0. */
#ifndef ATTRIBUTE_PURE
# if (GCC_VERSION >= 3000)
# define ATTRIBUTE_PURE __attribute__ ((__pure__))
# else
# define ATTRIBUTE_PURE
# endif /* GNUC >= 3.0 */
#endif /* ATTRIBUTE_PURE */
/* Use ATTRIBUTE_PRINTF when the format specifier must not be NULL.
This was the case for the `printf' format attribute by itself
before GCC 3.3, but as of 3.3 we need to add the `nonnull'
attribute to retain this behavior. */
#ifndef ATTRIBUTE_PRINTF
#define ATTRIBUTE_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n))) ATTRIBUTE_NONNULL(m)
#define ATTRIBUTE_PRINTF_1 ATTRIBUTE_PRINTF(1, 2)
#define ATTRIBUTE_PRINTF_2 ATTRIBUTE_PRINTF(2, 3)
#define ATTRIBUTE_PRINTF_3 ATTRIBUTE_PRINTF(3, 4)
#define ATTRIBUTE_PRINTF_4 ATTRIBUTE_PRINTF(4, 5)
#define ATTRIBUTE_PRINTF_5 ATTRIBUTE_PRINTF(5, 6)
#endif /* ATTRIBUTE_PRINTF */
/* Use ATTRIBUTE_FPTR_PRINTF when the format attribute is to be set on
a function pointer. Format attributes were allowed on function
pointers as of gcc 3.1. */
#ifndef ATTRIBUTE_FPTR_PRINTF
# if (GCC_VERSION >= 3001)
# define ATTRIBUTE_FPTR_PRINTF(m, n) ATTRIBUTE_PRINTF(m, n)
# else
# define ATTRIBUTE_FPTR_PRINTF(m, n)
# endif /* GNUC >= 3.1 */
# define ATTRIBUTE_FPTR_PRINTF_1 ATTRIBUTE_FPTR_PRINTF(1, 2)
# define ATTRIBUTE_FPTR_PRINTF_2 ATTRIBUTE_FPTR_PRINTF(2, 3)
# define ATTRIBUTE_FPTR_PRINTF_3 ATTRIBUTE_FPTR_PRINTF(3, 4)
# define ATTRIBUTE_FPTR_PRINTF_4 ATTRIBUTE_FPTR_PRINTF(4, 5)
# define ATTRIBUTE_FPTR_PRINTF_5 ATTRIBUTE_FPTR_PRINTF(5, 6)
#endif /* ATTRIBUTE_FPTR_PRINTF */
/* Use ATTRIBUTE_NULL_PRINTF when the format specifier may be NULL. A
NULL format specifier was allowed as of gcc 3.3. */
#ifndef ATTRIBUTE_NULL_PRINTF
# if (GCC_VERSION >= 3003)
# define ATTRIBUTE_NULL_PRINTF(m, n) __attribute__ ((__format__ (__printf__, m, n)))
# else
# define ATTRIBUTE_NULL_PRINTF(m, n)
# endif /* GNUC >= 3.3 */
# define ATTRIBUTE_NULL_PRINTF_1 ATTRIBUTE_NULL_PRINTF(1, 2)
# define ATTRIBUTE_NULL_PRINTF_2 ATTRIBUTE_NULL_PRINTF(2, 3)
# define ATTRIBUTE_NULL_PRINTF_3 ATTRIBUTE_NULL_PRINTF(3, 4)
# define ATTRIBUTE_NULL_PRINTF_4 ATTRIBUTE_NULL_PRINTF(4, 5)
# define ATTRIBUTE_NULL_PRINTF_5 ATTRIBUTE_NULL_PRINTF(5, 6)
#endif /* ATTRIBUTE_NULL_PRINTF */
/* Attribute `sentinel' was valid as of gcc 3.5. */
#ifndef ATTRIBUTE_SENTINEL
# if (GCC_VERSION >= 3005)
# define ATTRIBUTE_SENTINEL __attribute__ ((__sentinel__))
# else
# define ATTRIBUTE_SENTINEL
# endif /* GNUC >= 3.5 */
#endif /* ATTRIBUTE_SENTINEL */
#ifndef ATTRIBUTE_ALIGNED_ALIGNOF
# if (GCC_VERSION >= 3000)
# define ATTRIBUTE_ALIGNED_ALIGNOF(m) __attribute__ ((__aligned__ (__alignof__ (m))))
# else
# define ATTRIBUTE_ALIGNED_ALIGNOF(m)
# endif /* GNUC >= 3.0 */
#endif /* ATTRIBUTE_ALIGNED_ALIGNOF */
/* Useful for structures whose layout must much some binary specification
regardless of the alignment and padding qualities of the compiler. */
#ifndef ATTRIBUTE_PACKED
# define ATTRIBUTE_PACKED __attribute__ ((packed))
#endif
/* Attribute `hot' and `cold' was valid as of gcc 4.3. */
#ifndef ATTRIBUTE_COLD
# if (GCC_VERSION >= 4003)
# define ATTRIBUTE_COLD __attribute__ ((__cold__))
# else
# define ATTRIBUTE_COLD
# endif /* GNUC >= 4.3 */
#endif /* ATTRIBUTE_COLD */
#ifndef ATTRIBUTE_HOT
# if (GCC_VERSION >= 4003)
# define ATTRIBUTE_HOT __attribute__ ((__hot__))
# else
# define ATTRIBUTE_HOT
# endif /* GNUC >= 4.3 */
#endif /* ATTRIBUTE_HOT */
/* We use __extension__ in some places to suppress -pedantic warnings
about GCC extensions. This feature didn't work properly before
gcc 2.8. */
#if GCC_VERSION < 2008
#define __extension__
#endif
/* This is used to declare a const variable which should be visible
outside of the current compilation unit. Use it as
EXPORTED_CONST int i = 1;
This is because the semantics of const are different in C and C++.
"extern const" is permitted in C but it looks strange, and gcc
warns about it when -Wc++-compat is not used. */
#ifdef __cplusplus
#define EXPORTED_CONST extern const
#else
#define EXPORTED_CONST const
#endif
/* Be conservative and only use enum bitfields with GCC.
FIXME: provide a complete autoconf test for buggy enum bitfields. */
#if (GCC_VERSION > 2000)
#define ENUM_BITFIELD(TYPE) __extension__ enum TYPE
#else
#define ENUM_BITFIELD(TYPE) unsigned int
#endif
#ifdef __cplusplus
}
#endif
#endif /* ansidecl.h */
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